Natural numbers - practice problems - page 8 of 91
Number of problems found: 1804
- A fair 2
A fair die is thrown two times. What is the probability that the sum of the score is almost 8?
- A restaurant’s
A restaurant’s menu has 3 appetizers, 3 mains and 2 desserts. In how many way can a 3-course meal be ordered?
- The marathon
Twelve athletes are joining the Topolcany Marathon Event. How many ways can the first, second, and third placers be chosen?
- Divisors 7
If 540=2²×3³×5, what is the number of all factors of 540?
- Three numbers
In three numbers, the first number is double the second number, and the second number is double the third. The average of the numbers is 21. Find the least number.
- Consecutive odd numbers
Find three consecutive odd numbers whose sum is 93.
- Locker combination
Todd forgot the first two numbers of his locker combination. The numbers can be any number 1 through 6. What is the probability that he will guess the first number correctly and the second number incorrectly?
- 52 cards
A hand of five cards is dealt from a pack of 52 playing cards. How many different hands can be dealt that contain three aces?
- Perfect square or cube
Would you classify 324 as a perfect square, perfect cube, both, or neither? ...
- Sqrt of 24
What is the square root of 24?
- Quarter 80735
What is a quarter of 36?
- One fourth
How many fourths are there in 12?
- What is missing (1000)
What number is to add to get 1000?
- Smallest 83971
What is the smallest seven-digit number? What is the smallest six-digit number?
- What is 14
What is (-2)4× 34?
- Denominator 82357
The denominator is 1628 larger, than the denominator. What is the difference?
- Fraction multiplied by the sum
Find the three-fifths of the sum of 18 and 17.
- Writing Numerals by name
Write numerals given the word name: Two million, two hundred thousand, one hundred six
- Evaluate 12
Evaluate and simplify 9 divided by 7/6.
- Roman numerals
Write numbers written in Roman numerals as a decimal.
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